Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Schedule of Allocation of Stock-based Compensation (Details)

v3.20.2
Stockholders' Equity - Schedule of Allocation of Stock-based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Stock-based compensation expense $ 554 $ 930 $ 1,510 $ 1,998
Cost of product sales        
Stock-based compensation expense 22 17 44 92
Research and development cost        
Stock-based compensation expense 15 19 120 134
General and administrative expense        
Stock-based compensation expense $ 517 $ 894 $ 1,346 $ 1,772